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Flexible prosthetic bearing for joint

A prosthesis, joint replacement technology, applied in the direction of prosthesis, elbow joint, knee joint, etc., can solve problems such as increasing bone retention

Active Publication Date: 2017-02-22
BIOMET UK +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, it is possible to use thinner components to allow for increased bone retention

Method used

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  • Flexible prosthetic bearing for joint
  • Flexible prosthetic bearing for joint
  • Flexible prosthetic bearing for joint

Examples

Experimental program
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Embodiment Construction

[0045] The sagittal, coronal, and horizontal planes are shown in Figure 1. refer to Figure 1A , the line A-A' lies in the sagittal plane and the line BB' lies in the coronal plane. refer to Figure 1B , the line A-A' lies in the sagittal plane and the line CC' lies in the horizontal plane. Lines A-A', BB' and CC' are perpendicular to each other.

[0046] One embodiment of the invention provides a bearing 1 for use in a total or partial joint replacement prosthesis 11 . Figure 2A shows an external view of an embodiment of the support 1, and Figure 2B An arrangement of only the reinforcing element 5 and the attachment member 7 is shown. The support 1 comprises a body 3 and a reinforcement element 5 , wherein the reinforcement element 5 extends out of the body 3 of the support 1 to form an attachment member 7 .

[0047] The body 3 of the bearing is ideally shaped to provide support for the artificial and / or natural elements of the joint into which the body is to be insert...

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Abstract

A bearing for a total or partial joint replacement prosthesis has a body and a reinforcing element which strengthens the bearing and forms an attachment member, and / or the bearing is formed at least partially from polymeric or composite material the bearing comprising a lower modulus portion and a higher modulus portion, one portion of the bearing being at least partially encased by the other portion of the bearing. Also provided are a method for forming the bearing and a total or partial joint replacement prosthesis comprising the hearing.

Description

technical field [0001] The invention relates to an at least partially flexible bearing for a prosthetic or natural joint. Bearings allow full compliant contact throughout the full range of joint motion and are anatomically shaped. Background technique [0002] Existing prosthetic joint bearings are often configured to maintain compatible contact with the bone or articulating prosthesis throughout the range of joint motion. [0003] In order to maintain a compatible contact, it is often necessary for the bearing to take a non-anatomical shape. This is because previous anatomically shaped prosthetic supports have not been adapted to maintain compatible contact throughout the joint's range of motion because they cannot mimic the natural flexibility of cartilage while retaining sufficient rigidity to adequately support the joint. [0004] It is an object of the present invention to allow the use of anatomical components and compatible bearings in a low wear bearing combination...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38A61F2/30
CPCA61F2/30965A61F2/3872A61F2/389A61F2002/30014A61F2002/30331A61F2002/30481A61F2002/30576A61F2002/30919A61F2240/002A61F2002/30971
Inventor D·W·默里C·A·F·多德J·J·奥康纳M·I·卡恩R·劳埃德
Owner BIOMET UK
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